콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Enhanced molar sorption ratio for naphthalene through the impregnation of surfactant into chitosan hydrogel beads
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2010-06
- 저자명 우승한
- 학술지명 BIORESOURCE TECHNOLOGY
- 발행처명 ELSEVIER SCI LTD
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
논문 초록 (Abstract)
Surfactants in their impregnated forms in chitosan beads (CBs) were used for sorption of naphthalene (NAP) from aqueous solutions. Thre e different surfactants, Triton X-100 (TX100), cetyltrimethyl ammoniu m bromide (CTAB) and sodium dodecyl sulfate(SDS), were selected for this study. The results showed that surfactant-impregnated CS beads (SI CBs) in the form of a separatephase surfactant were very effective for NAP sorption. The calculated molar sorption ratio (MSRB mol NAP/mol surfactant) of the surfactant impregnated into SICBs was much g reater than the intrinsic molar solubilization ratio (MSR) in liquid p hase. The high MSRB value could be explained by favorable configurati ons of surfactants in beads, such as micelles in sorbed form. The equi librium isotherm did not follow Langmuir or Freundlich models, but foll owed Chapman sigmoidal equation, indicating co-operative sorption of solutes. Using SICBs as a separate phase surfactant may be a va luable tool for remediation of groundwater contaminated with hydrophob ic organic compounds. (C) 2010 Elsevier Ltd. All rights reserved.
